Synchronous pulley stable in transmission

Abstract

The synchronous pulley comprises two pulley bodies and a synchronous belt, the two sides of the interior of the synchronous belt are arranged on the two pulley bodies in a sleeving mode respectively, gear teeth are integrally formed on the outer side walls of the pulley bodies, tooth grooves are integrally formed in the inner side wall of the synchronous belt, and the tooth grooves are meshed with the gear teeth. The vertical plates are arranged on the two sides of the belt wheel body, the middles of the vertical plates are connected with the belt wheel body through the first bearings and the rotating rods, the extension rings are installed on the two sides of the outer side wall of the synchronous belt, the wheel grooves are formed in the outer sides of the extension rings, the rolling wheels are installed on the inner sides of the vertical plates through the wheel seats, and the rolling wheels are installed in the wheel grooves in a rolling mode. In the transmission operation process of the synchronous belt, the two sides of the synchronous belt can be supported through the idler wheels, deviation is avoided, stable operation of the belt wheel body and the synchronous belt is guaranteed, the friction effect is greatly reduced, and lasting use of the synchronous belt is kept.

Description

Technical Field

[0001] This patent relates to the technical field of synchronous pulleys, and specifically relates to a synchronous pulley with stable transmission. Background Art

[0002] The outer wall of the synchronous pulley is engaged and driven with the inner tooth grooves of the synchronous belt through the teeth. In order to increase the transmission stability effect of the synchronous belt on the pulley, an annular groove is provided in the middle of the outer wall of the pulley, and the synchronous belt is placed in the annular groove. However, during the transmission process, both sides of the synchronous belt will have serious friction with both sides of the annular groove, resulting in serious wear of the synchronous belt and frequent replacement. For this reason, we propose a synchronous pulley with stable transmission. Utility Model Content

[0003] The purpose of this patent is to provide a synchronous pulley with stable transmission to solve the problems raised in the above background art.

[0004] To achieve the above purpose, this patent provides the following technical solution: A synchronous pulley with stable transmission, including a pulley body and a synchronous belt. The number of the pulley bodies is two. The two sides of the inside of the synchronous belt are respectively sleeved on the two pulley bodies. The outer wall of the pulley body is integrally formed with teeth, and the inner wall of the synchronous belt is integrally formed with tooth grooves, and the tooth grooves are engaged with the teeth;

[0005] Both sides of the outer wall of the synchronous belt are fixedly installed with extension rings. Wheel grooves are provided on the outer sides of the two extension rings. Vertical plates are provided on the left and right sides of the pulley body. A circular hole is provided in the middle of the vertical plate. A first bearing is fixedly installed on the inner side wall of the circular hole. A rotating rod is fixedly installed on the inner side wall of the inner ring of the first bearing. The inner end of the rotating rod is installed on the end axis of the pulley body. Cross bars are fixedly installed on both the upper and lower sides of the inner side of the vertical plate. A wheel seat is fixedly installed at the inner end of the cross bar. A roller is connected to the wheel seat through a rotating shaft. The roller is rollingly installed in the wheel groove, and the edge of the roller body is closely attached to the inside of the wheel groove;

[0006] The wheel seat includes a U-shaped seat, a second bolt, a spring and a second bearing. Through holes are provided on both sides of the U-shaped seat. The outer side wall of the outer ring of the second bearing is fixedly installed on the inner side wall of the roller. The end of the second bolt passes through the through hole and the second bearing and is screwed with a nut. The spring is sleeved on the second bolt, and the inner end of the spring is closely attached to the inner ring of the second bearing.

[0007] Preferably, the outer end of the rotating rod extends beyond the outer end face of the vertical plate.

[0008] Preferably, an adhesive layer is provided between the extension ring and the synchronous belt.

[0009] Preferably, an installation plate is integrally formed on the bottom side of the outer side of the vertical plate. An installation hole is provided in the middle of the installation plate, and a first bolt is provided in the installation hole. The bottom end of the first bolt is screwed into the installation position.

[0010] Preferably, an elliptical groove is provided at the right end center of the pulley body. An elliptical rod is integrally formed at the left end of the right-side rotating rod. The axial shape of the elliptical rod matches the shape of the elliptical groove, and the left end of the elliptical rod is inserted into the elliptical groove.

[0011] Preferably, the right end of the left-side rotating rod is welded to the left end center of the pulley body. Preferably, a drive motor can be connected to the left end of the left-side rotating rod.

[0012] Compared with the prior art, the beneficial effects of this patent are as follows: In this patent, vertical plates are provided on both sides of the pulley body. The middle of the vertical plates is connected to the pulley body through the first bearings and the rotating rods. Extension rings are installed on both sides of the outer side wall of the synchronous belt. A wheel groove is provided on the outer side of the extension ring. The inner side of the vertical plate is provided with rollers through wheel seats, and the rollers can be rotatably installed in the wheel groove. When the synchronous belt is driving and running, the synchronous belt can be supported on both sides by the rollers, avoiding deviation, ensuring the stable operation of the pulley body and the synchronous belt, and greatly reducing the friction effect, maintaining the long-term use of the synchronous belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is the overall schematic diagram of this patent.

[0014] Figure 2 is the three-dimensional view of the pulley body of this patent.

[0015] Figure 3 is the overall right view of this patent.

[0016] Figure 4 is the right view of the pulley body and the synchronous belt of this patent.

[0017] Figure 5 is the schematic diagram of the wheel seat of this patent.

[0018] In the figure: 1. Pulley body, 2. Teeth, 3. Synchronous belt, 4. Tooth groove, 5. Extension ring, 6. Wheel groove, 7. Vertical plate, 8. Round hole, 9. First bearing, 10. Rotating rod, 11. Cross bar, 12. Wheel seat, 13. Roller, 14. Installation plate, 15. Installation hole, 16. First bolt, 17. Elliptical groove, 18. Elliptical rod, 19. U-shaped seat, 20. Second bolt, 21. Nut, 22. Spring, 23. Second bearing. DETAILED DESCRIPTION OF THE INVENTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of this patent in conjunction with the accompanying drawings in the embodiments of this patent. Obviously, the described embodiments are only a part of the embodiments of this patent, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this patent without creative efforts shall fall within the scope of protection of this patent.

[0020] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 This patent provides a technical solution: a synchronous pulley with stable transmission, including a pulley body 1 and a synchronous belt 3. The number of pulley bodies 1 is two, and both sides inside the synchronous belt 3 are sleeved on the two pulley bodies 1 respectively. A tooth 2 is integrally formed on the outer side wall of the pulley body 1, and a tooth groove 4 is integrally formed on the inner side wall of the synchronous belt 3. The tooth groove 4 meshes with the tooth 2.

[0021] Both sides of the outer side wall of the synchronous belt 3 are fixedly installed with extension rings 5. Wheel grooves 6 are provided on the outer sides of the two extension rings 5. Vertical plates 7 are provided on the left and right sides of the pulley body 1. A circular hole 8 is provided in the middle of the vertical plate 7. A first bearing 9 is fixedly installed on the inner side wall of the circular hole 8. A rotating rod 10 is fixedly installed on the inner side wall of the inner ring of the first bearing 9. The inner end of the rotating rod 10 is installed on the end axis center of the pulley body 1. Cross bars 11 are fixedly installed on both the upper and lower sides of the inner side of the vertical plate 7. A wheel seat 12 is fixedly installed at the inner end of the cross bar 11. A roller 13 is connected in the wheel seat 12 through a rotating shaft. The roller 13 is rollingly installed in the wheel groove 6, and the edge of the wheel body of the roller 13 is closely attached to the inside of the wheel groove 6.

[0022] As Figure 1 shown, the two sides of the synchronous belt 3 can be supported by the rollers 13 on both sides to prevent deviation during operation.

[0023] The wheel seat 12 includes a U-shaped seat 19, a second bolt 20, a spring 22 and a second bearing 23. Through holes are provided on both sides of the U-shaped seat 19. The outer side wall of the outer ring of the second bearing 23 is fixedly installed on the inner side wall of the roller 13. The end of the second bolt 20 passes through the through hole and is screwed with a nut 21 through the second bearing 23. The spring 22 is sleeved on the second bolt 20, and the inner end of the spring 22 is closely attached to the inner ring of the second bearing 23.

[0024] Figure 5 As shown, the spring 22 is in a compressed state. Through the same compression effect of the two springs 22, the roller 13 is in a centered state inside the wheel seat 12, which can not only facilitate the assembly of the wheel seat 12 and the roller 13, but also prevent the roller 13 from shifting inside the wheel seat 12 and affecting the rotation effect.

[0025] Specifically, the outer end of the rotating rod 10 exceeds the outer end surface of the vertical plate 7 .

[0026] like Figure 1 As shown, by the outer end of the rotating rod 10 extending beyond the outer end surface of the vertical plate 7 , the supporting strength of the vertical plate 7 on the rotating rod 10 can be increased.

[0027] Specifically, an adhesive layer is provided between the extension ring 5 and the synchronous belt 3 .

[0028] By providing an adhesive layer between the extension ring 5 and the synchronous belt 3, the extension ring 5 and the synchronous belt 3 can be easily disassembled and replaced.

[0029] Specifically, a mounting plate 14 is integrally formed on the bottom side of the outer side of the vertical plate 7. A mounting hole 15 is provided in the middle of the mounting plate 14. A first bolt 16 is provided in the mounting hole 15. The bottom end of the first bolt 16 is screwed into the mounting position.

[0030] Specifically, an elliptical groove 17 is provided at the axis center of the right end of the pulley body 1, and an elliptical rod 18 is integrally formed at the left end of the right rotating rod 10. The axial shape of the elliptical rod 18 matches the shape of the elliptical groove 17, and the left end of the elliptical rod 18 is inserted into the elliptical groove 17.

[0031] When the synchronous belt 3 needs to be replaced, the bolt 16 on the right vertical plate 7 can be removed, and then the vertical plate 7 can be moved to the right to disengage the elliptical rod 18 from the elliptical groove 17, and at the same time, the roller 13 on the right side disengages the wheel groove 6, and then the synchronous belt 3 can be removed from the right side of the pulley body 1.

[0032] Specifically, the right end of the left rotating rod 10 is welded to the left end axis of the pulley body 1 .

[0033] Specifically, the left end of the left rotating rod 10 may be connected to a transmission motor.

[0034] Working principle: The left end of the rotating rod 10 on the left is connected to the transmission motor to drive the pulley body 1 to rotate, and the pulley body 1 drives the synchronous belt 3 to run and transmit. The rollers 13 on both sides are rolled and installed in the wheel groove 6 to support both sides of the synchronous belt 3 to avoid deviation during operation.

[0035] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that those skilled in the art understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0036] In the description of this patent, it should be understood that the orientation or positional relationships indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. At the same time, unless otherwise clearly specified and limited, terms such as "set", "installed", "connected", "fixedly installed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0037] Although the embodiments of this patent have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this patent. The scope of this patent is defined by the appended claims and their equivalents.

Claims

1. A synchronous pulley with stable transmission, characterized in that: It includes a pulley body (1) and a timing belt (3). The number of the pulley bodies (1) is two. The two sides inside the timing belt (3) are respectively sleeved on the two pulley bodies (1). The outer side wall of the pulley body (1) is integrally formed with teeth (2). The inner side wall of the timing belt (3) is integrally formed with tooth grooves (4). The tooth grooves (4) are engaged with the teeth (2). Both sides of the outer side wall of the timing belt (3) are fixedly installed with extension rings (5). Wheel grooves (6) are arranged on the outer sides of the two extension rings (5). Vertical plates (7) are arranged on the left and right sides of the pulley body (1). A round hole (8) is arranged in the middle of the vertical plate (7). A first bearing (9) is fixedly installed on the inner side wall of the round hole (8). A rotating rod (10) is fixedly installed on the inner side wall of the inner ring of the first bearing (9). The inner end of the rotating rod (10) is installed on the end axis center of the pulley body (1). Cross bars (11) are fixedly installed on the upper and lower sides of the inner side of the vertical plate (7). A wheel seat (12) is fixedly installed at the inner end of the cross bar (11). A roller (13) is connected in the wheel seat (12) through a rotating shaft. The roller (13) is rotatably installed in the wheel groove (6). The edge of the wheel body of the roller (13) is closely attached to the inside of the wheel groove (6). The wheel seat (12) includes a U-shaped seat (19), a second bolt (20), a spring (22) and a second bearing (23). Through holes are arranged on both sides of the U-shaped seat (19). The outer side wall of the outer ring of the second bearing (23) is fixedly installed on the inner side wall of the roller (13). The end of the second bolt (20) passes through the through hole and the second bearing (23) and is screwed with a nut (21). The spring (22) is sleeved on the second bolt (20). The inner end of the spring (22) is closely attached to the inner ring of the second bearing (23).

2. A synchronous pulley with stable transmission according to claim 1, characterized in that: The outer end of the rotating rod (10) extends beyond the outer end face of the vertical plate (7).

3. A synchronous pulley with stable transmission according to claim 1, characterized in that: An adhesive layer is arranged between the extension ring (5) and the timing belt (3).

4. A synchronous pulley with stable transmission according to claim 1, characterized in that: An installation plate (14) is integrally formed on the bottom side of the outer side face of the vertical plate (7). An installation hole (15) is arranged in the middle of the installation plate (14). A first bolt (16) is arranged in the installation hole (15). The bottom end of the first bolt (16) is screwed in the installation position.

5. A synchronous pulley with stable transmission according to claim 1, characterized in that: An elliptical groove (17) is arranged at the axis center of the right end of the pulley body (1). An elliptical rod (18) is integrally formed at the left end of the rotating rod (10) on the right side. The axial shape of the elliptical rod (18) matches the shape of the elliptical groove (17). The left end of the elliptical rod (18) is inserted into the elliptical groove (17).

6. A synchronous pulley with stable transmission according to claim 1, characterized in that: The right end of the rotating rod (10) on the left side is welded to the axis center of the left end of the pulley body (1).

7. A synchronous pulley with stable transmission according to claim 1, characterized in that: The left end of the rotating rod (10) on the left side can be connected with a driving motor.

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